18-09-2018
Mathematics

contestada

What is 13 - 4x = 1 - x

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watwolves8855 watwolves8855

18-09-2018

13-4x=1-x
13=4x+x=1-x+x
13-3x=1
13-1-3x=1-1
12-3x=0
12=3x
12/3=3x/3
4=x
Therefore, x=4

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